Storage tank



March 22, 1927. Y 1,621,959

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March 22, 1927.

B. S. SNOW STORAGE TANK Filed Nov. 19, 1925 J6 772g JZl ,vezzzar (57202@ Patented Mar. 22, 1927.

UNITED STATES PATENT OFFICE.,

BARTON S. SNOW', OF BATAVIA, ILLNOS, ASSIGNUR TO T. W. SNOW CONSTRUCTION CO., OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

STORAGE TANK.

Application tiled November 19, 1925.

My invention, as to one feature thereof, relates generally to tanks for storing water, as tor example, for use in the charging ot tenders of locomotives; and as to another feature thereof, more particularly to tanks tor storing chemically treated water, or muddy water, as for example tor the use above stated.

One of my objects is to provide a tloatcontrolled inlet valve tor the tank which shall avoid objectionable slow closing there ot in its linal closing movement and conse quent wire cutting, oit its seat, and overflow of water trom the tank producing waste ol. water and undesirable conditions about the tank.

Another object is to provide tor the ready removal, for substitution or repa-ir, ot the valve controlling the outlet of the tank, with the minimum waste of water, and incon` venience and danger to the workmen, and to accomplish this by simple and economical means; and other objects as will be manilest trom the following description.` Referring to the accompanying` drawings Figure 1 is a view in vertical sectional elevation or' water storage apparat-us einbodying my improvements. Figure 2 is an enlarged broken sectional view taken at the lines .2-2 in Fig. 1 and viewed in the direction of the arrows; and Figure 3, a broken enlarged View in longitudinal sectional elevation or' the float-controlled inlet valve for the tank.

The particular illustrated apparatus comprises a main tank portion 4 shown as supported upon a framework 5. The tank is closed at its upper end, except tor the openings hereinafter re'lerred to, by the cover portion 6 which extends below, and is spaced trom, a root' portion 7 containing a manhole controlled by a cover 9, all in accordance with common practice.

Extending upwardly into the tank Il; :is an inlet water pipe 10 which would communicate with the source ot water to be supplied to the tank, the upper end of this pipe being provided with float-controlled valve mechanism operating automatically to open the inlet pipe to the tank when the water level drops below a predetermined line, and replenish the water in the tank up to this Serial No. 70,033.

level, a description of the particular illustrated means provided tor this purpose being as follows. j

Mounted on the upper end of the pipe 10 and opening into the latter is a valve casing 11 provided, adjacent its outlet 12, with an annular valve seat 13 with which an annular gasket 111 of flexible material carried on the end of a valve proper l5 slidable in the casing 11, cooperates to control the flow ot' water trom the pipe 10 into the tank. At the rear ot the valve seat 13 the casing 11 is cored out to provide an annular channel 16 communicating with the upper end ot the pipe 10, the rear end of the casing 11 being ot different enlarged internal diameters as represented at 17 and 18, its rear extremity being closed by a cover plate 19.

The valve proper 15, which is a piston valve, contains an opening 2O in its forward end, whereby the interior 0i' the valve 15 1s in communication at all times with the outlet 12, and is provided at its opposite endwith a partition 21 containing an opening 22 therethrough, preferably annularly tapered as represented at 23, and 'forming a communication between the interior ot the piston valve and the rear end of the casing 11, this valve being provided with an annu lar, outwardly projecting, flange, 211 which extends into the rear portion of the casing ot larger diameter as stated. The internal diameter of the portion 17 of the casing is slightly larger than the external diameter ot' the flange portion 24 et the valve 15 to provide a slight space between this flange and the wall ot the portion 17 ot the casing, the flange 24 extending into the portion 17 when the valve 15 is in closed condition.

An auxiliary valve is provided tor controlling the opening 22, this valve comprising a valve proper 25 adapted when in closed position to engage the seat 23 and close communication between the interior ot the piston valve 15 and the compartment at the rear ol' the casing 11. This auxiliary valve also comprises a valve stem 26 to one end of which the valve 25 is connected, and a disk 27 carried by the stem 26 and spaced from the valve 25, the stem E26 sliding` in a bearing 28 located in, and rigid with` the piston 15 in front of, and spaced trom`r the partition 21. The outer end ot the valve Cil above the main valve 44, and supplied from the -inlet 42 through the clearance between the valve 44 and casing 37, operating to cause this valve to be tightly forced aga-inst the seat 5S with which it cooperates, thereby ensuring a tight joint. Owing to the relatively large diameter of the portion 47 of the valve body, the valve 44 may move downwardly under the action ofthe weighted lever 53, relatively fast, the final movement of the valve to closed position, being retarded sufficiently to prevent water hammering', by the requirement that the water beneath the flange 45 be displaced upwardly through the relatively slight clearance between this flange and the wall of the portion 46 of the valve body. The flow of the water from the tank 4 to the discharge pipe B5 is through a pipe 59 located in the tank, with its lower, or elbow, and GO swiveled, as represented at 6l, to the outer end of the portion 4l of the valve body 37, the outer end of the pipe 60 which is open, being attached, by the connector 62, with a float 63 located within the tank 4 and adapted to float upon the water therein and maintain the upper, inlet, end of the pipe 59 submerged in the water in the tank at a slight distance below the top of the water. The float 63 is shown as connected with a cable 64 which extends through an opening in the cover portion 6 and provided with a button 65 located above this cover Section, the length of this cable being such that the pipe 59 not lower at its inlet below a predetermined point, as for example as shown by dotted lines in Fig. l.

It will be noted from the foregoing that the water supplied to the pipe 35 is taken from the body of water in the tank 4 between the upper and lower zones thereof, thereby ensuring the supplying of clear water to this pipe, the withdrawal of the water from the tank at an intermediate zone as stated, avoiding the draining into the pipe 35 not only of the sludge which may be in the bottom of the tank, but also such scum and other light particles as may float on the surface of the water.

It will be understood from the foregoing that when it is desired to remove the valve controlling the outlet of the tank 4, either for purposes of repair or replacement, it is not necessary thatthc operator enter the tank structurf-i, as the operating parts of the valve may be readily bodily lifted out of the tank through the open upper end of the valve body extension, it being understood that prior to the removal of the valve the operator swings the pipe 59 to a position in which its open upper end is above the water line, niaintaining` this pipe in such position until the valve is again repositioned for use.

It will also be noted that by providing a valve structure of the character stated, the

amount of water which is wasted in the operation of removing the valve controlling the outlet from the tank, is reduced to the minimum, as the only water wasted is that which is located in portions of the apparatus of relatively small cross-sectional area.

`While l have illustrated and described a particular construction embodying my invention, I do not wish to be understood as intending to limit it thereto as the same may be variously modied and altered without departing from the spirit of my invention.

What I claim as new, and desire to secure by Letters Patent, is:

l. Vllateistorage apparatus, comprising a tank, a valve controlling the flow of water therefrom and comprising a valve body in said tank containing an inlet and an outlet and a valve proper controlling the flow of water through said valve body, and means controlling the flow of water into said inlet, said valve body having an upwardly projecting extension and said valve proper being bodily liftable out of said body and extension, said extension projecting close to the top of the tank to prevent draining of the latter through the upper end of said eX- tension when said valve proper is removed.

2. VVater-storage apparatus, comprising a tank, a valve controlling the flow of water therefrom and comprising a valve body in said tank containing an inlet and an outlet and' a. valve proper controlling the flow of water through said valve body, and constructed and arranged to be forced to close position by water pressure accumulating above said valve proper, and means control ling the flow of water into said inlet, said valve body having an upwardly projecting extension and said valve proper being bodily liftable out of said body and extension, said extension projecting close to the ton of the tank to prevent draining of the latter though the upper end of said extension when said valve proper is removed.

3. lVatenstorage apparatus, comprising a tank, a valve controlling the flow of water therefrom and comprising a valve body in said tank containing an inlet and an outlet having a seat and a valve proper controlling the flow of water through said valve body, with valve packing carried by said valve proper and adapted to engage said seat, and means controlling the flow of water into said inlet, said valve body having an upwardly projecting extension and said valve proper being bodily liftable out of said body and extension, said extension projecting close to the top of the tank to prevent draining of the latter through the upper end of said extension when said valve proper is removed.

4. Water-storage apparatus, comprising a. tank, a valve controlling the llow of water therefrom and comprising a valve body in said tank containing an inlet and an outlet Sii llO

f 15 and;Conmmncabingfat its outlet ,-Withf the nvalve pnoper being bodily liiftrble l-Out wf said. body-fand fextension,sadiexiensiongpmpe1.,e11d of :said extension when; said a yalye Luzoper i .is L'emoved.

1 BARTON SNQFN. 

